If the webrtc/src repo is checked out in a directory that isn't named
"src", FindSrcDirPath will loop forever. Instead of trying to find the
repo root, just use the location of the scripts and work out the
root with os.pardir.
Bug: b/333744051
Change-Id: Ifccdb85d3f9c7cb27ca57cc0b7bb96adf783660d
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/357980
Reviewed-by: Mirko Bonadei <mbonadei@webrtc.org>
Commit-Queue: Gavin Mak <gavinmak@google.com>
Cr-Commit-Position: refs/heads/main@{#42701}
c51a5c00c4